Indicated result Possible reason Proposed action
ADC-module OK No problem detected. None.
ADC-module Fail The AD conversion
module has failed.
Contact your ABB representative for service.
(Protocol name) Ready No problem detected. None.
(Protocol name) Fail Protocol has failed.
(I/O module name)
Ready
No problem detected. None.
(I/O module name) Fail I/O modules has failed. Check that the I/O module has been
configured and connected to the IOP1- block.
If the problem persists, contact your ABB
representative for service.
15.2 Fault tracing
15.2.1 Internal fault indications
If an internal fault has occurred, the local HMI displays information under Main
menu/Diagnostics/IED status/General
Under the Diagnostics menus, indications of a possible internal failure (serious fault)
or internal warning (minor problem) are listed.
Indications regarding the faulty unit are outlined in table
19.
Table 19: Self-supervision signals on the local HMI
HMI Signal Name:
Status Description
INT Fail OFF / ON This signal will be active if one or more of
the following internal signals are active;
INT--LMDERROR, INT--WATCHDOG,
INT--APPERROR, INT--RTEERROR, or
any of the HW dependent signals
INT Warning
OFF / ON This signal will be active if one or more of
the following internal signals are active;
INT--RTCERROR, INT--
IEC61850ERROR, INT--
TIMESYNCHERROR
ADMnn
READY / FAIL Analog input module n failed. Signal
activation will reset the IED
BIMnn READY / FAIL BIM error. Binary input module Error
status. Signal activation will reset the IED
BOMn READY / FAIL BOM error. Binary output module Error
status.
IOMn READY / FAIL IOM-error. Input/Output Module Error
status.
MIMn READY / FAIL mA input module MIM1 failed. Signal
activation will reset the IED
RTC READY / FAIL This signal will be active when there is a
hardware error with the real time clock.
Table continues on next page
Section 15 1MRK502053-UEN B
Troubleshooting
248 Generator protection REG670 2.0 IEC
Commissioning manual
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